3GP to WAV Converter

Convert 3GP to WAV Online

3GP is the container older 3G phones and feature phones recorded to, and its audio track is almost always AMR speech (narrowband, sampled at 8 kHz) or AAC. This tool extracts that audio and decodes it to WAV — uncompressed linear PCM that opens in any audio editor without a codec. Decoding to WAV makes a phone recording portable and edit-ready, but it cannot add detail the original AMR or AAC track never captured: a narrowband voice memo stays a narrowband voice memo, just in a lossless, universally editable wrapper.

How to Convert 3GP to WAV

1. Upload Your 3GP File: Drag and drop your .3gp or .3g2 clip onto the page, or click "+ Add Files" to browse. You can queue several at once.
2. Set Audio Sample Rate: Leave it on "Original" to keep the recording's native rate (8 kHz for AMR-NB), or upsample to 44100 Hz if your editor or CD-mastering tool expects standard rates. Upsampling does not recover lost detail; it only changes the sample grid.
3. Set Audio Channel: Leave on "Original," or force Mono — most 3GP voice recordings are already mono, so forcing stereo just duplicates the channel and doubles the file size for no gain.
4. Convert and Download: Click "Convert" and download your WAV. No sign-up, no watermark.

What Fidelity to Expect from a 3GP Audio Track

The WAV you get out is only as good as the audio the phone recorded. Use this to set expectations before you convert.

Frequently Asked Questions

Why does my 3GP voice recording sound muffled even as a WAV?

Because the source is almost certainly AMR-NB, the narrowband speech codec 3G phones used for calls and voice memos. AMR-NB samples at 8 kHz and only carries roughly 200–3400 Hz — the telephone speech band. Converting to WAV stores those exact samples losslessly, but the frequencies above ~3.4 kHz were never recorded, so no format can add them back. WAV makes the clip editable and portable, not higher-fidelity.

Will the WAV file be much larger than the 3GP?

Yes, often dramatically. WAV is uncompressed PCM, so its size is fixed by sample rate, bit depth, and channel count regardless of how quiet the audio is. CD-quality stereo (44.1 kHz, 16-bit) runs at about 1,411 kbps — roughly 10 MB per minute. An AMR clip that was a few hundred kilobytes can become several megabytes as WAV. If size matters more than lossless editing, convert 3GP to MP3 instead, or compress the WAV afterward.

Should I upsample 8 kHz AMR audio to 44.1 kHz?

Only if a downstream tool requires a standard rate — for example, a DAW or CD-mastering workflow that expects 44.1 kHz. Upsampling resamples the existing audio onto a denser grid; it does not reveal detail the 8 kHz source never had, and it makes the file larger. If your editor accepts arbitrary rates, leaving sample rate on "Original" keeps the file smaller and avoids an unnecessary resample.

Does WAV preserve the audio losslessly from the 3GP?

The decode step from AMR or AAC to PCM is lossy in the sense that the original codec already discarded data when the phone recorded it — that loss is permanent. From that decoded PCM forward, WAV adds no further loss: it stores the samples exactly. So the WAV is a faithful, lossless container around audio that was already compressed once on the device.

Are my uploaded 3GP files kept private?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public. In our testing, a 30-second AMR-NB voice memo (8 kHz, mono) decoded to a roughly 0.5 MB mono WAV; the same clip upsampled to 44.1 kHz stereo grew to about 5 MB, which is why we leave sample rate and channel on "Original" by default. If you have a bare .amr file with no video wrapper, use AMR to WAV instead.